Hi man , you could
vary the number of called out “random in range” for example, casting 100 random in range from 0 to 1
will give you a stability to 50%
or you could use “lerp” the random value to the high value giving you greatest bonus for most distant numbers like
like , 10 will get a bonus of 10 while 90 just 1
or you could just add a bonus float random in range to add to your first random call, and then clamp it to the max
so you will shift your probability toward the max.
you could also check for some statistics and probability theory if you need something like casino-proof